Oil-geological characteristics of the deep zone in the first step of Hu-qing oilfield in the Dongpu sag are thoroughly analyzed.

Based on geological model of deposits and by means of CAD method,the authors put forward the building method of layered opencast mining geological model, whose layers are composed of bench.

Three-dimensional ledges were observed on the broad faces and at the tip of bainitic plates, which proves the real existence of ledges.

The results show that all the initial bainites formed in different alloys at different temperatures are with three-dimensional ledges on the broad faces and/ or at the growth edges of α1 plates but without internal stacking faults, which proves that ledges exist generally on bainites in Cu-Zn-Al alloys and that the growth of bainites is govern.

Numerical Research on the Influence of Different Step and Expanding Modes on Scramjet Combustor;

Molecular Dynamics Simulations of Single Adatom Diffusion on Si(001) and Single-height Si(001) Steps;

Growth hillock,step topography and step edge energy of ADP crystals:ex situ and in situ investigation by atomic force microscopy

The Distribution of Zeros of Solutions of First-order Advanced Differential Equations;

A general form of impedance function of first-order one-port network is represented by two-port parameters.

An exact solution was obtained by solving the first-order shear deformation .

In this paper,we use the coincidence degree theory to establish new results on the existence and uniqueness of T-periodic solutions for the first order neutral functional differential equation of the form(x(t)+Bx(t-δ))′=gl(t,x(t))+g2(t,x(t-τ(t)))+p(t).

The time-space bi-m degree discontinuous finite element to solve first order hyperbolic system with variable coefficients is discussed.

This paper studies the oscillatory behaviour of a class of the first order linear functionaldifferential equations and obtains some sufficient conditions for the oscillation of all solutions ofthe equations.